381264711211 has 4 divisors (see below), whose sum is σ = 381269147112. Its totient is φ = 381260275312.

The previous prime is 381264711173. The next prime is 381264711253. The reversal of 381264711211 is 112117462183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 381264711211 - 2¹⁷ = 381264580139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381264781211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2086426 + ... + 2261791.

It is an arithmetic number, because the mean of its divisors is an integer number (95317286778).

Almost surely, 2^381264711211 is an apocalyptic number.

381264711211 is a deficient number, since it is larger than the sum of its proper divisors (4435901).

381264711211 is an equidigital number, since it uses as much as digits as its factorization.

381264711211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435900.

The product of its digits is 16128, while the sum is 37.

The spelling of 381264711211 in words is "three hundred eighty-one billion, two hundred sixty-four million, seven hundred eleven thousand, two hundred eleven".